variant of or before a vowel:
(used before a vowel) a variant of octo-
1. a combining form occurring in loanwords from Greek and Latin, where it meant “eight” (octagon; octastyle), on this model, used in the formation of compound words, and in chemical terms specialized to mean “having eight atoms” (octavalent). /ˈɒktə/ noun 1. a variant spelling of okta combining form 1. a variant of octo- before vowels […]
[ok-tuh-kawrd] /ˈɒk təˌkɔrd/ noun 1. any musical instrument with eight strings. 2. a diatonic series of eight tones. /ˈɒktəˌkɔːd/ noun 1. an eight-stringed musical instrument 2. a series of eight notes, esp a scale
[ok-tad] /ˈɒk tæd/ noun 1. a group or series of eight. 2. Chemistry. an element, atom, or group having a valence of eight. /ˈɒktæd/ noun 1. a group or series of eight 2. (chem) an element or group with a valency of eight
[ok-tuh-dek-uh-noh-ik, ok-] /ˈɒk təˌdɛk əˈnoʊ ɪk, ˌɒk-/ noun, Chemistry. 1. .